Cita APA

Phillips, R., & Salt, E. M. (1937). American government and its problems. Houghton Mifflin company.

Citación estilo Chicago

Phillips, Robert, and Edward McChesney Salt. American Government and Its Problems. Boston, New York [etc.]: Houghton Mifflin company, 1937.

Cita MLA

Phillips, Robert, and Edward McChesney Salt. American Government and Its Problems. Houghton Mifflin company, 1937.